Description
BMW Coolant Expansion Tank – OEM Part 17112283500
This is a high-quality genuine BMW coolant expansion tank designed as a direct replacement for your vehicle’s original reservoir. It carries the manufacturer part number 17112283500 (also referenced as 17-11-2-283-500), ensuring a perfect OEM fit and function.
The expansion tank is a critical component of the engine’s cooling system. It stores excess coolant and manages pressure changes as the engine heats up and cools down. This helps maintain optimal radiator performance and prevents overheating, air lock issues, and potential engine damage.
Key Features
- Genuine BMW part designed to OEM specifications
- Includes cap, level sensor, and bleeder screw for complete installation
- Durable, heat-resistant construction for long-lasting performance
- Prevents coolant loss and maintains correct pressure balance
- Direct replacement for the original reservoir on compatible models
Compatibility
Fits certain BMW M3 models equipped with the S65 4.0 L V8 engine produced from approximately 2008 through 2013. Always verify compatibility with your specific vehicle or VIN before purchase.
Maintenance & Benefits
If the original expansion tank shows signs of cracking, leaking, low coolant warnings, or frequent coolant top-ups, replacing it with this genuine unit will restore proper coolant management and help protect your engine from overheating or pressure-related cooling system issues.








